CVE-2026-66805EPSS p80.5%

CVE-2026-66805CVE-2026-66805

microsoft / sharepoint_server

Description

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Scoring

CVSS 8.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS2.04% probability of exploitation · percentile 80.5% · 2026-10-06T12:00:23Z
Last modified2026-08-13
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.